AuxXxilium/linux_dsm_epyc7002
1
0
Fork 0
mirror of https://github.com/AuxXxilium/linux_dsm_epyc7002.git synced 2024-12-04 07:56:43 +07:00
Code Issues Actions Packages Projects Releases Wiki Activity

ARC: Adjust cpuinfo for non-continuous cpu ids

Browse Source 
num_possible_cpus() returns how many CPUs may be present on system.
However we want the highest possible CPU number.
This may be differ in a sparsed possible CPUs map.
Such map achived by OF for plat-eznps.

For example if we have:
possible cpus mask 0,3

Then:
num_possible_cpus() is equal 2
	while
nr_cpu_ids is equal 4.

Only for value 4 c_start() will provide correct cpuinfo at procfs.

Signed-off-by: Noam Camus <noamc@ezchip.com>
Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
This commit is contained in:
Noam Camus 2016-10-19 14:25:03 +03:00 committed by Vineet Gupta
parent 27f3d2a3b5
commit 3da43104d3
1 changed files with 1 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
arch/arc/kernel/setup.c
View File

@ -507,7 +507,7 @@ static void *c_start(struct seq_file *m, loff_t *pos)
* way to pass it w/o having to kmalloc/free a 2 byte string. * way to pass it w/o having to kmalloc/free a 2 byte string.
* Encode cpu-id as 0xFFcccc, which is decoded by show routine. * Encode cpu-id as 0xFFcccc, which is decoded by show routine.
*/ */
return *pos < num_possible_cpus() ? cpu_to_ptr(*pos) : NULL; return *pos < nr_cpu_ids ? cpu_to_ptr(*pos) : NULL;
} }
static void *c_next(struct seq_file *m, void *v, loff_t *pos) static void *c_next(struct seq_file *m, void *v, loff_t *pos)